update dev dependencies

package.json

@@ -4,12 +4,12 @@
   "description": "jquery.inputmask is a jquery plugin which create an input mask.",
   "main": "./dist/inputmask/jquery.inputmask.js",
   "files": [
-      "dist/inputmask/jquery.inputmask.js",
-      "dist/inputmask/jquery.inputmask.extensions.js",
-      "dist/inputmask/jquery.inputmask.date.extensions.js",
-      "dist/inputmask/jquery.inputmask.numeric.extensions.js",
-      "dist/inputmask/jquery.inputmask.phone.extensions.js",
-      "dist/inputmask/jquery.inputmask.regex.extensions.js"
+    "dist/inputmask/jquery.inputmask.js",
+    "dist/inputmask/jquery.inputmask.extensions.js",
+    "dist/inputmask/jquery.inputmask.date.extensions.js",
+    "dist/inputmask/jquery.inputmask.numeric.extensions.js",
+    "dist/inputmask/jquery.inputmask.phone.extensions.js",
+    "dist/inputmask/jquery.inputmask.regex.extensions.js"
   ],
   "scripts": {
     "test": "grunt qunit"
@@ -42,8 +42,8 @@
     "grunt": "^0.4.5",
     "grunt-bump": "^0.3.0",
     "grunt-contrib-clean": "^0.6.0",
-    "grunt-contrib-qunit": "^0.5.2",
-    "grunt-contrib-uglify": "^0.8.1",
+    "grunt-contrib-qunit": "^0.7.0",
+    "grunt-contrib-uglify": "^0.9.1",
     "grunt-nuget": "^0.1.4",
     "grunt-release": "^0.12.0",
     "grunt-shell": "^1.1.2"